ISR Performance O2 Sensor Adapter - Nissan SR20DET

The ISR Performance O2 Sensor Adapter for the Nissan SR20DET solves one of the small but annoying problems that come up when an SR20DET is swapped into a 240SX or fitted with an aftermarket O2 housing, downpipe or test pipe: the oxygen sensor does not thread straight into the new part. This adapter bridges that gap so the sensor can be mounted and the ECU gets the signal it expects.

What it is for

• Mounting the oxygen sensor on an SR20DET exhaust setup
• Swap installs where the sensor and the exhaust part do not match up
• Aftermarket O2 housings and downpipes that need an adapter for the sensor

Why it matters

An SR20DET running the factory ECU relies on the O2 sensor for closed-loop fueling at cruise. Leaving it unplugged or poorly seated means rich or lean mixtures at part throttle, a check engine light, and worse fuel economy. A proper adapter keeps the sensor in the stream and the ECU happy.

Compatibility

Nissan SR20DET. Check the thread on your sensor and the port on your exhaust part before ordering so you get the right combination for your setup.

All ISR Performance products are designed for off-road use only.